介绍了大连石化公司三催化装置分馏塔结盐情况，对结盐现象进行了分析，通过采取在线水洗措施解决了塔顶结盐问题，取得了好的效果。

The problem that salt accumulating on the top of fractionating column is solved by water-washing on line with good result.

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介绍了大连石化分公司低温余热利用的几个实例，包括装置与装置之间的热联合、装置与系统公用工程之间的热联合及系统与系统之间的热联合等。

Examples of low temperature waste heat utilization in Dalian Company are introduced, e. g, heat integration between unit and unit, units and system utilities, system and system as well.

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